Apparatus for continuous extraction, particularly of oil



mmm-9 vFiled Aug. ll, 1920 M, WILBUSCHEWTSCH APPARATUS FOR CONTINUUS EXTRACTIONX I' 'i I MLK- atentedlelay 3, 1923. l

` narran stares IES MLBUSCHIEWITSCH, 0F ZURICH, SWITZRLAND.

APPMA'US FR CONTINUOUS EXTRACTIQN, PARTXCUL'RL'Y @F Um.

Application filed .August 1l, 1920. Serial N10. 02net.

To all whom t may con/cem.'

Be it known that l, Mosh r1lVlLBuscnn- Wrrsor-I, a citizen or the Swiss Confederation, residing at Zurich, Switzerland, have invented certain new and useful lmprovements in Apparatus for Continuous Extraction, Particularly of Oil (for which l have tiled application in Germany June 12, 1919; France, June 18, 1920), of which the following is a specification.

rlhis invention relates to an apparatus for the continuous extraction of oil and other substances and it comprises means for bringing the substance to be extracted 1n contact with the solvent whereupon it is submitted to mechanical squeezing. The treatment of the extraction substance can be improved by treating the substance again with the solvent after it has been squeezed and to squeeze it again. Vrlhis alternating dissolving and mechanical squeezing can e repeated as often asis necessary.

The accompanying drawing illustrates diagrammatically an apparatus for extracting oil in the manner above described.

The material to be extracted, e. g. oil containing fruit and the like, which has been prepared in the proper manner, is fed through a funnel a into a tube c which brings in into the lower end of a receptacle l). This receptacle is lled with a solvent, e. g. benzine. A conveyor worin i at the lower end of the receptacle b carries the material to a conveyor worm e which conducts the material to a squeezer f. This squeezer can be of any convenient construction and is arranged above a receptacle g filled with benzine. The squeezed oil cake sinks in the tube 71. to the bottom of receptacle g, the oil is dissolved in the benzine owing from the squeezer f through a pipez' to the conveyor worm d to be treated again in the manner hereinbefore described.

The material to be extracted is transported by means of two conveyor worms la and Z from the lower part of the receptacle g to a squeezer n. arranged above a third receptacle m, the oil dissolved in the benzine being conducted through a pipe ov from the squeezer n back to the conveyor worm 7c, the squeezed material being brought through a tube p into the receptacle m filled with benzine. From here the material is conducted by two conveyor worms q and 1' to a third squeezer s from which the oil dissolved in benzine iS Conducted through pipe conduit z to a separator 2 in which water and benzine settle under the influence of water injected from above at 3. The water flows out through pipe a, the benzine being drawn 0E' through the pipe 5. rlhe separator 2 is connected with a vacuum pump by means of a conduit 5. A second separator 7 of similar construction is also connected with the vacuum pump. Conduits 8 lead to this separator from the receptacles b, g and m and 10 so that the benzine vapour and the air which collect in the same can escape. separator 7 throu h the conduit 9, the water which has been injected and which has separated from the benzine flowing out through pi e 11.

Vart of the oil can be drawn off from the receptacles b, g and m according to the quality by means of a pipe 12 which, as shown in the drawing, connected the first receptacle b with a distilling vessel 13 in which the benzine is evaporated by means of steam injected through a pipe 14, the vapours thus generated being drawn along by the steam so that at the lower end of the distilling vessel the pure oil can dow out through pipe 15. ln order to observe the quality of the solution in the several receptacles b, g and m these receptacles can be fitted with the .test cocks 16.

The mixture of steam and benzine vapours is conducted from the distilling vessel 13 through a pipe 17 into the condenser 18 where it settles. The condensate Hows through pipe 19 into the collector 10 in which the water separates from the benzine. The water which is heavier than the benzine liows olii through pipe 20, the benzine being conducted to the plant through pipe 21 to the conveyor worm r. 'lhe benzine circulates through the plant in opposite direction as the material to be extracted; said material does not completely lill the pipes of the conveyor worms leaving thus sucient room for the benzine which continuously filters through the material and. gets The benzine iows out of the Q intento grnluatly more saturated. The conveyor interposeolV between said tubes, o stili for worms have preferably conve ing urins inseparating the oil from the solvent, und] steailoof discs. The loss of enzine is remeans for introducing the solvent into the t5 plee/ed through filling in fresh benzine series of tubes and thereby producing at 5 through e funnel 22 mounted upon tube 21. closed circulation of the solvent.

I claimziin testimony whereof it a my signa- An apparatus for the extraction of oil ture in presence of two witnesses. from fruits by means of e solvent, comprising n series of long tubes, means for MUSE WHJBUSCHEWETSCH' 1o forcing the extraction material throughV Witnesses:

seid tube in counter current to the solvent, ROEUL Musoow.,

mechines for repeetedinechenicel expression MAX MILLER. 

